Steam-injector.



Patented May I4, |90l.

F. STICKER. STEAM INJECTOR.

[Application led May 4, 1900.)

(Model.)

Y/I//IIIIIIIAV THE Norms PETERS co. PHoYcLLITMo. wAsNmoToN. n. c.

UNITED STATES PATENT OFFICE.

FRANCIS STICKER, OF NEW YORK, N. Y., ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, TO CHARLES A. DRUCKLIEB, OF SAME PLACE.

STEAM-INJ'ECTOR.

SPECIFICATION formngp'art of Letters Patent No. 674,181, dated May 14,1901.

Application filed May 4:, 1900. Serial No. 15,517. (Model.)

1b all whom t may concern.

Be it known that I, FRANCIS STICKER, of New York, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Steam-Injectors and I do hereby declare the following tobe a full, clear, and exact description of the iuvention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to steam-injectors, and has special reference todouble-tube machines of the kind designed for locomotive use.

One object is to provide improved means for regulating the capacity ofthe injector and its ability to work under different pressures andtemperatures and also to accomplish this regulation while the injectoris in operation without destroying its proper working.

A further object is to provide improved means for packing the stem ofthe startingvalve, allowing easy examination and removal of the packing,and a further object is to locate the thread of the valve-stem outsideof the injector-casing, so as to prevent its being worn by the action ofthe steam.

The invention will -be hereinafter fully set l forth, and particularlypointed out in the claims.

In the accompanying drawings, Figure l is avertical longitudinalsectional view of an injector constructed in accordance with myimprovements. Fig. 2 is a vertical cross-sectional view.

Referring to the drawings, A designates the casing; a, the steam-inlet;a', the waterinlet; a2, the overflow-opening, and as the boiler-outlet.

B is the forcer, and C is the lifter. The steam-inlet tube 1 and thecombining and delivery tube 2 of the lifter are located in relation tothe corresponding tubes of the forcer after the manner shown anddescribed in Letters Patent No. 600,455, issued to me on March 8, 1898.The steam is supplied to tube 1 through a conduit 3 leading fromsteamchamber 4.

of the machine, combining-tube 2 is adjustable longitudinally, so as toincrease or diminish the space between its receiving end and thedischarge end of steam-tube 1. This longitudinal adjustment is effectedby means of a cock 5, having grooves which accommodate lugs 6 of thecombining and delivery tube. This cock is of conical outline andV isheld to its seat by a plug 7, screwed into an internally-threadedopening in the end of the casing, the stem 8 projecting beyond theplug., The combining-tube is externally threaded at 9 to engage athreaded opening in one of the partitions of the casing. Hence byturning the cock the combining tube will be moved longitudinally, so asto increase or decrease the space between it and the steamtube, and thusregulate the capacity of the machine. It will be noted ihat thisadjustment of the combining-tube is effected with-V out the employmentof stuffing-boxes. v tapered cock is held firmly to its seat and at thesame time the rotation thereof effects the longitudinal movement of thecombining and delivery tube.

The discharge-chamber 10 of the lifter opens into Water-chamber 11 ofthe forcer. mediate the steam-tube 12 and the combining-tube 13 of theforcer is a water or lifting tube 14, through which the water dischargedby the lifter passes to the combining-tube. The combining-tube 13 isprovided with longitudinal lateral escape-passages 15, as set forth inLetters Patent No. 645,27 5, granted to me March 13, 1900.

D is the steam-controlling valve, having its seat against partition 16for controlling the passage of steam through conduit 3 to the lifter.From the face of this valve projects a plug 17, which extends into thesteam-tube 12 of the forcer, preventinga supply of steam entering thelatter when the valve is first unseated to supply steam to the lifter.After the water is lifted and discharged into chamber 10 and taken up bytube 14 valve D is fully withdrawn, allowing the steam to enter theforcer and be condensed by the water. The stem 18 of valve D isprojected through a stuing-box 19, fitted in an opening in the casing.This stuffing-box is externally threaded to engage a ring 20, whichlatter is screwed into an internally-threaded opening in the The yInter-v IOO casing. A packing-holding ring 21 is held in place by a nut22 engaging an external thread on stuffing-box 19. Beyond thestuding-box stem 18 is externally threaded to engage aninternally-threaded sleeve 23, which is held station ary by arms 24,projecting from the ring 20. An operating-handle 25 is on the outer endof the valve-stem. By this construction not only may the valve andstuffingbox be readily removed, but the thread of the valve-stem isoutside of the casing, and thus protected from the action of steam.

It will be observed that the discharge of the lifter is throughspill-chamber 26, the use of an intermediate auxiliary overflow notbeing required by reason of the employment of the lateral longitudinalescape-passages 15. The auxiliary overflow from chamber 26 and theprimary overflow of the chamber 27 may both be positively cut off by thecock E, the operating-stem of which is extended to the forward end ofthe machine.

In practice valve D is unseated sufficient to admit steam to the lifter,and upon this steam passing through the auxiliary overflow-opening tothe outside atmosphere a vacuum is created within the casing, effectingthe lifting of the water. The water being discharged from its chamber 10and taken up by the water-tube 14 of the forcer, the plug 17 of valve Dis wit-hdrawn from steam-tube 12 and the full head of steam is admittedto the forcer. This being condensed by the water and the column of steamand water being established, the overiows are cut off by valve D and thecolumn will pass directly to the boiler, unseating check-valve 2S. Thecapacity of the machine is regulated by the operator by adjusting thecombining and delivery tube of the lifter. Thus I am enabled to regulatethe capacity of the machine while in operation Without destroying theproper working of the injector.

Heretofore it has been customary to employ a globe-valve in thesuction-pipe of an injector, or the steam entering the lifting device isthrottled in order to regulate the capacity of the machine. Thethrottling of Water is detrimental to the velocity imparted to the waterby the over-pressure of the outside atmosphere, and the flow through aglobevalve is always combined with a loss through friction. In thesecond instance it has been found exceedingly detrimental to successfulresults to throttle the steam. Bysimply regulating the space between thesteam and combining tubes of the lifter, according to the quantity ofwater desired, the most perfect` regulation can be effected withoutsubjecting the water to any loss on account of friction and Withoutinterfering with the steam. By reducing or increasing the iniiowingwater the temperature, as well as the overpressure of the establishedjet, is entirely at the will and Linder the control of the operator.

I claim as my invention-- l.Asteam-injectorhavingalongitudinallyadjustable tube for regulating thecapacity of the machine, and a cock fitted in and projecting through theinjector-casing for effecting the longitudinal adjustment of the tube,as set forth.

2. A steam-injector having its combining and delivery tube adjustablelongitudinally, for regulating the capacity of the machine, and a cockfitted in the casing of the injector and engaging such tube, said cockprojecting through and beyond said casing, as set forth.

3. The combination With the casing having a partition formed with athreaded opening, of a tube having an external thread working in saidopening, a cock fitted in the casing and engaging said tube, and meansfor turning the cock for effecting the longitudinal movement of thetube, as set forth.

4. A steam-injector having a valve-stem externally threaded andprojected through the valve casing, and an internallythreaded member,held away from said casing, with which the thread of the valve-stem isdesigned to engage, substantially as set forth.

5. A steam-injector having a valve-stem externally threaded, apacking-box in the injector-casing through which said stem is passed,and an internally-threaded member held away from the casing in line withthe packing-box, with which member the thread of the valve-stem isdesigned to engage, substantially as set forth.

6. In a steam-injector having a valve-stem externally threaded, apacking-box through which the stem is projected, a ring surrounding saidpacking-box and fitted in the injectorcasing, a sleeve having a threadedopening to accommodate the thread of the valve-stem, and arms projectingfrom said ring supporting said sleeve, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

FRANCIS STICKER. Witnesses:

ANNA T. MALLoN, L. HERZIG.

IOO

